<!DOCTYPE html>
<html>
    <head>
	<meta charset="utf-8" />
		<title></title>
<!--[if lt IE 9]><!-->
    		<script src="http://code.jquery.com/jquery-1.11.3.min.js "></script>
<!--<![endif]-->
<!--[if gte IE 9]><!-->
			<script src="https://code.jquery.com/jquery-3.2.1.min.js "></script>
<!--<![endif]-->
	<script>
		$(document).ready(function(){
  $("input").select(function(){
    $("input").after("文本已选中!");
  });
  $("button").click(function(){
    $("input").trigger("select");
  });
});
</script>
</head>
<body>
 
<input type="text" value="Hello World">
<br><br>
<button>触发输入框的 select 事件</button>
 
</body>
</html>
